Flylight Airsports Skyranger Swift, Operator'S Manual

Page: 22 / 56

Skyranger Swift Operators Manual (issue 3)
22
5.5 Takeoff performance
Take-off performance for short dry grass for your aircraft is contained
in Annex A. Using those figures, the following additional safety factors
should be applied to the distance to clear a 15metre obstacle (taken
from CAA GA Safety Sense leaflet 7C).
Per 1000 ft runway height above Sea Level Multiply by 1.1
Per 10°C increase in temperature above 15°C Multiply by 1.1
Per 2% uphill slope Multiply by 1.1
Soft ground or snow or wet grass Multiply by 1.25+
If you have to take-off with a tailwind Multiply by 1.2 for every 4
knots of wind
Now to be sure, multiply by 1.33, to take into account that you may not fly the aeroplane as
well as the company test pilot did when he worked out the values in the manual.
5.6 Landing performance
Landing performance for short dry grass for your aircraft are contained
in Annex A. Using the figures above, the following additional safety
factors should be applied to the distance to clear a 15metre obstacle
on the approach (taken from CAA GA Safety Sense leaflet 7C
For every 1000ft you are above sea level multiply by 1.05
For every 10
0
C above 15
0
C air temperature multiply by 1.05
For every 2
%
of downslope multiply by 1.1
If the ground is soft, or there is snow or wet grass multiply by 1.25+
(very short grass may be
more slippery – up to 1.6)
If you have to land with a tailwind multiply by 1.2 for every 4
knots of wind
Now to be sure, multiply by 1.43, to take into account that you may not fly the
aeroplane as well as the company test pilot did when he worked out the values in the
manual.